The Whites are waiting on top scorer and leading striker Patrick Bamford ahead of kick-off at Craven Cottage, who picked up a hip injury against Chelsea last time out.
Bielsa, though, was bullish about his chances of starting the game against Scott Parker's men.
Rodrigo has picked up a muscle problem and is doubtful for the trip to the capital but defender Robin Koch is available once again after picking up minutes with the club's Under-23s side this week.
Pablo Hernandez could return to the squad while Leeds skipper Liam Cooper remains out through illness and Leif Davis also has minor knock - Adam Forshaw (hip) is the only long-term absentee.
Here, the Yorkshire Evening Post pick our line-up for the clash with the Cottagers under the London lights:
7. Dallas - CM
Has really taken to his spot in the engine room in recent weeks, so much so he has replaced Mateusz Klich here.
8. Raphinha - RW
Arguably the signing of the season across the Premier League. When he's on it Leeds have so much more in attack.
9. Harrison - LW
Enduring a slight dip in form. Harrison and Costa have both struggled to make the left wing their own in recent games. One needs a good performance to help United out.
10. Roberts - CAM
Probably his best top flight performance for Leeds last time out against Chelsea. It came at a good time. Should retain his spot, especially with Rodrigo doubtful.
11. Bamford - ST
Bielsa was hopeful of his inclusion after a hip knock. Leeds need him and his 13 goals to lead the line, otherwise he'll be sorely missed.